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    Production of alkynols and alkynediols
    1.
    发明授权
    Production of alkynols and alkynediols 失效
    生产烷基醇和烷基二醇

    公开(公告)号：US3723545A

    公开(公告)日：1973-03-27

    申请号：US921170

    申请日：1970-02-06

    Applicant: BASF AG

    Inventor： NAGEL OTTO ,  PLATZ ROLF ,  FUCHS WERNER

    IPC: B01J10/00 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/42 ,  C07C33/04 ,  C07C33/046 ,  C07C33/28 ,  C07C67/00 ,  C07C33/06

    CPC classification number: C07C29/42 ,  C07C33/046 ,  Y10S261/75

    Abstract: Production of alkynols and/or alkynediols by reaction of acetylene with aldehydes in a liquid reaction medium in the presence of a heavy metal acetylide as catalyst and in the presence or absence of basic reagents, at least one of the starting materials being introduced in gaseous form. The catalyst is suspended in the liquid medium and during the reaction a portion of the reaction medium is withdrawn and returned at the entry point below the level of the liquid of the gaseous starting material(s) at a speed of 5 to 100 meters per second into the reaction medium and is introduced into a chamber (located in the reaction medium and extending in the direction of the liquid returned) whose inlet opening has a mean diameter from twice to twenty times the mean diameter of the liquid nozzle and whose length is three to thirty times ints hydraulic diameter. The products are important intermediates for example for the production of solvents or may be used in electrolytic baths.

    Abstract translation: 在重金属乙炔化物作为催化剂的存在下，在液态反应介质中，乙炔与醛反应生成炔烃和/或炔二醇，在碱性试剂存在或不存在下，至少一种原料以气态形式引入 。 催化剂悬浮在液体介质中，并且在反应期间，反应介质的一部分以5至100米/秒的速度在气态起始材料液体的入口点下方返回 进入反应介质并引入到入口开口的平均直径为液体喷嘴的平均直径的二倍至二十倍的室（位于反应介质中并沿着返回的液体的方向延伸），其长度为三 至30倍液压直径。 该产品是重要的中间体，例如用于生产溶剂或可用于电解池。

    Production of glyoxal
    10.
    发明专利
    Production of glyoxal 未知

    公开(公告)号：GB1041376A

    公开(公告)日：1966-09-07

    申请号：GB2668163

    申请日：1963-07-05

    Applicant: BASF AG

    Inventor： PLATZ ROLF ,  FUCHS WERNER

    IPC: C07C45/28 ,  C07C45/34

    Abstract: Glyoxal is produced by reacting ethylene with nitric acid in aqueous medium in the presence of a palladium salt as catalyst at 0 DEG to 100 DEG C., the concentration of nitric acid in the reaction mixture being 1 to 40% by weight and the amount of palladium salt being more than 0.0001% by weight. The ethylene feed may be pure or commercial ethylene or may contain other gases, e.g. ethane, and the nitric acid may be wholly or partly replaced by nitrogen oxides which yield nitric acid under the reaction conditions. Preferred palladium salts are the palladous salts, especially the chloride or nitrate, or complexes thereof but other palladium salts or substances which give palladium salts under the reaction conditions, e.g. palladium metal, may be employed. The process may be performed with co- or counter-current gas and catalyst solution flow at sub-, super- or atmospheric pressures. The catalyst may be removed from the aqueous reaction product by, for example, ion or redox exchangers or electrolytic deposition and reused. Glyoxal is recovered from the aqueous product by conventional methods.

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